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A comment on A regression is the kernel not giving the same result with the same user space. Parent comment

Re:A regression is the kernel not giving the same result wit... by majewsky on Thursday November 02, 2017 @10:29AM (#15610678)
Yet a huge number of Python modules are both valid Python 2 code and Python 3 code.
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Re:A regression is the kernel not giving the same result wit... by mikeash on Thursday November 02, 2017 @10:50AM (#15610884)
Sure, they're similar enough that a single file can be valid in both with less effort than most language pairs. That doesn't mean it's an update, any more than C is an upgrade to Lisp because I can make a file that's valid in both.
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